


Computer system crashes and no CD-ROM drive USB flash drive? Three tips to teach you how to repair and reinstall the system
The editor of php teaches you three tips to deal with the situation when the computer system crashes and there is no optical drive USB disk, so that you can easily repair and reinstall the system.
Tool materials:
System version: Windows 11 (21H2)
Brand model: Lenovo Yoga 14s 2021 model
Software version: Micro PE Toolbox 2.1
1. Use the system restore function to repair the system
If your computer has previously created a system restore point, you can try to use the system restore function to repair it. Broken system. First, restart the computer and continuously press the F8 key during the power-on self-test phase to enter the advanced startup options. Select "Repair your computer" and then select "System Restore". Next, select a recently created restore point and follow the prompts to complete the restore process. This method can help you restore your system to a previous working state.
2. Use the system repair disk to repair the system
If your computer is pre-installed with the system repair disk, you can use it to repair the crashed system. Restart the computer and continuously press the F12 key during the power-on self-test phase to enter the boot device selection interface. Select the partition where the system repair disk is located, and then follow the prompts to repair the system. The repair process may take a while, please be patient. Once completed, your system should boot normally.
3. Use the micro PE toolbox to reinstall the system
If the first two methods cannot repair your system, then you can consider using the micro PE toolbox to reinstall the system. First, download the micro PE toolbox and make a bootable USB flash drive. Then, restart the computer and boot from the USB disk to enter the micro PE environment. In the micro PE, select the "one-click installation" function and follow the prompts to select the system version and installation location to be installed. Next, the toolbox will automatically download the system image and install it. The whole process may take dozens of minutes to several hours, please make sure the computer has sufficient power. Once the installation is complete, you can enjoy your brand new system.
Content extension:
1. Regularly back up important data: In order to prevent data loss caused by system crash, it is recommended to regularly back up important files to external storage devices or the cloud.
2. Create a system restore point: Before making major changes to the system, it is recommended to create a system restore point so that you can quickly recover if a problem occurs.
3. Keep the system updated: Install the latest updates of the operating system and various software in a timely manner to fix known vulnerabilities and improve system stability.
4. Install software with caution: Try to download software from official channels, check user reviews before installation, and avoid installing suspicious software to reduce the risk of system crash.
Summary:
System crash is a problem that every computer user may encounter, but as long as you master the correct method, you can successfully repair and reinstall it even without a CD-ROM drive or USB flash drive. system. Whether you use the system restore function, use the system repair disk, or use the micro PE toolbox, it can help you get rid of the trouble of system crash. At the same time, in daily use, backing up data, creating restore points, keeping the system updated, and installing software carefully can minimize the risk of system crashes and keep your computer in top condition.
The above is the detailed content of Computer system crashes and no CD-ROM drive USB flash drive? Three tips to teach you how to repair and reinstall the system. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The DATETIME data type is used to store high-precision date and time information, ranging from 0001-01-01 00:00:00 to 9999-12-31 23:59:59.99999999, and the syntax is DATETIME(precision), where precision specifies the accuracy after the decimal point (0-7), and the default is 3. It supports sorting, calculation, and time zone conversion functions, but needs to be aware of potential issues when converting precision, range and time zones.

Navicat itself does not store the database password, and can only retrieve the encrypted password. Solution: 1. Check the password manager; 2. Check Navicat's "Remember Password" function; 3. Reset the database password; 4. Contact the database administrator.

Use the DELETE statement to delete data from the database and specify the deletion criteria through the WHERE clause. Example syntax: DELETE FROM table_name WHERE condition; Note: Back up data before performing a DELETE operation, verify statements in the test environment, use the LIMIT clause to limit the number of deleted rows, carefully check the WHERE clause to avoid misdeletion, and use indexes to optimize the deletion efficiency of large tables.

Navicat for MariaDB cannot view the database password directly because the password is stored in encrypted form. To ensure the database security, there are three ways to reset your password: reset your password through Navicat and set a complex password. View the configuration file (not recommended, high risk). Use system command line tools (not recommended, you need to be proficient in command line tools).

It is impossible to view PostgreSQL passwords directly from Navicat, because Navicat stores passwords encrypted for security reasons. To confirm the password, try to connect to the database; to modify the password, please use the graphical interface of psql or Navicat; for other purposes, you need to configure connection parameters in the code to avoid hard-coded passwords. To enhance security, it is recommended to use strong passwords, periodic modifications and enable multi-factor authentication.

PostgreSQL The method to add columns is to use the ALTER TABLE command and consider the following details: Data type: Select the type that is suitable for the new column to store data, such as INT or VARCHAR. Default: Specify the default value of the new column through the DEFAULT keyword, avoiding the value of NULL. Constraints: Add NOT NULL, UNIQUE, or CHECK constraints as needed. Concurrent operations: Use transactions or other concurrency control mechanisms to handle lock conflicts when adding columns.

Recovering deleted rows directly from the database is usually impossible unless there is a backup or transaction rollback mechanism. Key point: Transaction rollback: Execute ROLLBACK before the transaction is committed to recover data. Backup: Regular backup of the database can be used to quickly restore data. Database snapshot: You can create a read-only copy of the database and restore the data after the data is deleted accidentally. Use DELETE statement with caution: Check the conditions carefully to avoid accidentally deleting data. Use the WHERE clause: explicitly specify the data to be deleted. Use the test environment: Test before performing a DELETE operation.

Building an SQL database involves 10 steps: selecting DBMS; installing DBMS; creating a database; creating a table; inserting data; retrieving data; updating data; deleting data; managing users; backing up the database.
